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Most eucalypts grow naturally on soils low in fertility. Commercial plantations of eucalypts have been established around the world over a range of climates and soils. These two themes are central to this book. Nutrition of Eucalypts provides a comprehensive survey of nutritional ecology of eucalypts in their natural environment and in plantations. The authors, who are all at the forefront of research and development in their fields, are from the various eucalypt growing regions including Brazil, India, China, Spain and Australia. Their text aims at a state-of-the-art presentation. The book includes a key and descriptions for recognising nutrient deficiencies in eucalypts.
Summarizes the science of climate change and impacts on the United States, for the public and policymakers.
Climate change poses many challenges that affect society and the natural world. With these challenges, however, come opportunities to respond. By taking steps to adapt to and mitigate climate change, the risks to society and the impacts of continued climate change can be lessened. The National Climate Assessment, coordinated by the U.S. Global Change Research Program, is a mandated report intended to inform response decisions. Required to be developed every four years, these reports provide the most comprehensive and up-to-date evaluation of climate change impacts available for the United States, making them a unique and important climate change document. The draft Fourth National Climate Assessment (NCA4) report reviewed here addresses a wide range of topics of high importance to the United States and society more broadly, extending from human health and community well-being, to the built environment, to businesses and economies, to ecosystems and natural resources. This report evaluates the draft NCA4 to determine if it meets the requirements of the federal mandate, whether it provides accurate information grounded in the scientific literature, and whether it effectively communicates climate science, impacts, and responses for general audiences including the public, decision makers, and other stakeholders.
Food production remains the highest agricultural priority, subject to the constraint that it be done in harmony with nature, or at least with minimum environmental pollution. The amount of fertilizer applied can be controlled using modern application techniques, including soil and crop management, guaranteeing higher economic profit and lower environmental cost. It is in such a context that the present book addresses the efficient and rational use of mineral and organic fertilizers while preserving environmental quality. The book discusses the impact on surface and groundwaters, soils and crops, and experience of nitrate leaching, denitrification, ammonia volatilization, heavy metal pollution, agricultural and urban waste management, and international and national legislation. Audience: Agronomists, environmentalists, soil and food chemists, ecologists, policy makers, and managers in the fertilizer industry concerned with the trend of public opinion.
Forest growth in Europe has been increasing during the last decades. The possible causes suggested to explain this have been increasing atmospheric carbon dioxide concentration, improved temperature and precipitation climate, increasing nitrogen deposition and better management. In this book complementary approaches are used to discriminate between the importance of each of these factors. Investigations over large geographical areas are used to separate current variability while detailed studies of the growth of individual trees allow historical trends to be evaluated. Four different mechanistic forest ecosystem models supplement the empirical investigations. The major cause of the observed growth increase is attributed to the increased nitrogen availability. In future, direct temperature effects and increasing atmospheric carbon dioxide concentration are likely to become important determinants of forest growth. Anyone interested in the future of production and health of Europe's forests should benefit form this extensive analysis of the current status and projections of forest growth.
The book offers a rich toolkit of relevant, adoptable ecosystem-based practices that can help the world's 500 million smallholder farm families achieve higher productivity, profitability and resource-use efficiency while enhancing natural capital.
This Special Issue of Water, Air and Soil Pollution offers contributions from the th 18 IUFRO workshop on Air Pollution Stress, Forest Responses to the Pollution st Climate of the 21 Century held in Edinburgh, Scotland, from September 21 to 23,1998. The meeting was held under the auspices of IUFRO, Research Group 7.04.00 chaired by Dr Kevin Percy of Canada. A new session structure was adopted to stimulate activity within the six working parties and a brief resume of these is presented at the front of this volume. The two, one-day plenary sessions were devoted to the two important air pollution issues, nitrogen deposition and ozone. Invited papers were augmented by a large and excellent contribution of poster papers. The final day comprised parallel Working Party Sessions with pre arranged speakers to stimulate discussions. One hundred and thirty one scientists attended, representing 20 countries and 7 IUFRO regions: Northern Europe, Central Europe, Eastern Europe, Mediterranean, North America, Asia and the Western Pacific. Lucy Sheppard David Fowler Water, Air, and Soil Pollution 116: 1, 1999.